How does the K & N filter?
Air Filters 101
Engines produce power of provoking a mixture of fuel and air. The air filter's job is to filter out particles of dirt while allowing a free flow of air to the engine can "breathe". A filter clogged with dirt will cause loss of power and fuel economy.
Most air filters used his role as a filter medium. Most cars require the filter to be checked or changed every 10000 to 20000 miles; when the filter is dirty, is thrown away and replaced.
How is K & N different?
K & N filters use an oiled cotton filter medium. K & N claims that its filters not only allows the flow of fresh air when clean, but they can absorb dirt without limitation as filter papers. When the filter gets dirty, not pull away, clean and re-oil. K & N estimates that the cleaning interval is about 50000 miles (longer for less dust). The filter is served with a K & N cleaning kit ($ 9 to $ 12 Compare Prices retail), which is good for 5 to 10 uses. K & N said its filter will last for the lifetime of the vehicle, with its filters and covers 10 years and millions of miles warranty.
Benefits of K & N filter
Benefits for the environment
Paper air filters can not be recycled; you have to throw the whole thing away. The K & N filter itself lasts the life of the car, and cleaning kit used cartons and plastic bottles that can be recycled.
Cost benefits
The cost savings will depend on the application. I tried K & N filter in our 1996 Honda Accord. The retail price for K & N filter is approximately $ 43. (My test sample was provided free of charge by K & N) filter papers ranging from $ 19 to $ 31. Honda recommends a change to filter 15000 miles, so for a do-it-yourself like me, K & N filter and a cleaning kit will take care of itself after two changes, or about two years. For people who have their car serviced by the dealership, the installation of a K & N could pay for itself in a single shift.
In the real world benefits
This is the reaility: I am not as careful as I should be on changing my cars' air filters. By the time I get around it, is the filter is usually clogged with dirt - and that means more to me to pump gas. The K & N longer service intervals means that you can blithely ignore that, without harmful effects.
Other issues with the K & N filter How well does it filter? Several readers have responded with concern for the K & W's ability to effectively filter out dirt air compared to filter papers. After all, protecting the engine is why engines have an air filter to begin. K & N insists that its filters are rigorously tested to meet standards filtration OEMs.
The expert opinion: Not an issue
I discussed the issue with the owner of an engine rebuilding shop reputation. In his experience, engines that have suffered from premature wear are those in which the filters are routinely ignored. He saw no significant difference in wear on the engines that filters are cleaned or changed regularly, regardless of their type. (Running personally K & N filters in their own cars.)
Does the K & N increased engine power?
Many enthusiasts use K & N filters because their increased airflow increases power, especially in certain applications. If replacing a clogged air filter certainly see the difference. My wife Robin and I did not see a significant increase in power, what he says, is not expected to - K & N sells a kit of special admission for owners of Understanding like us who want more power. (We will be a test in the near future.)
Conclusions What I like about the K & N filter:
* Easy installation - same as a paper air filter * A task less maintenance to worry about * Benefits for the environment - less waste produced * Potential for better long-term fuel economy
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